Pons, Christian

Research Engineer, EDF Lab les Renardières, Electricité de France, France

Pons, Christian

Research Engineer, EDF Lab les Renardières, Electricité de France, France

Biography

Influence of Different Pollution Sources on Performance of Insulation: Back to Basics

Mr. Pons joined the Electrical Equipment Laboratory at EDF Lab Les Renardières in 2001, where he has worked in the fields of software data processing as well as metrology management for high voltage and high current equipment. His current position is Research Engineer on external insulation. For more than a decade now, he has dealt with studies and tests on insulators for both overhead line and substation applications, with the main research focus being on insulator performance, behavior under pollution, monitoring and diagnostics. He is a member of IEC TC 36 ‘Insulators’.

Assessing pollution level must be done whenever a new grid is defined or operating voltage is modified. Choice and dimensioning of insulation is closely linked to contamination exposure of equipment while criticality of surface pollution depends on both its quantity and its nature. Inappropriate insulation selection can lead to problems such as increased cost of structures due to over-dimensioning or the need to upgrade structures in the case of under-dimensioning. This presentation deals with characterization of pollution level using classical tools and aims to demonstrate that pollution modelling is complex and requires in-depth expertise. It also highlights limitations of each alternative method as well as associated level of confidence.

Sessions: